code: def test_non_empty_reg_tags():
      assert JAML.registered_tags()
      assert __default_executor__ in JAML.registered_tags()
  
imports: import dataclasses
  import os
  import pytest
  import yaml
  from jina import Deployment, Flow, requests
  from jina.constants import __default_executor__
  from jina.excepts import BadConfigSource
  from jina.jaml import JAML, JAMLCompatible
  from jina.serve.executors import BaseExecutor
label_desc: Use image node_id 1 for calling a global function with example usage: test_non_empty_reg_tags() without return types